Vibration preventing syphon tube support



Nov. 5, 1946. A. w. UHL

VIBRATION PREVENTING SYPHON TUBE SUPPORT Filed Oct. 21, 1942Y INVENTOR Arur M. Uk

Wn n .A w. Y0@ B Patented Nov. 5, i946 UIE STATES anni Application October 21, 1942, Serial No. 462,875

1 Claim. l

This invention relates to supports, and more particularly has reference to supports of a resilient type in connection with tubular members to be supported in containers for high pressure uid media, which are adapted to absorb and minimize the effects of shock and vibration on the tubular members.

While the shock absorbing arrangement hereinabove referred to is applicable as a general resilient support, it will be described hereinafter in connection with containers for fluid pressure media.

Containers of this type, when in use, particularly for iire extinguishing or iniiating purposes, are usually provided with a discharge control device and a syphon tube, generally secured in the control device and extending into the container substantially to or adjacent the bottom thereof. This is the case where the duid medium is a liquid or is a gas which has been liquefied by compression, as liquid carbon dioxide.

The difficulty with this type of construction has been that the containers, in their various uses, are subject to a great deal of moving about, shocks, vibrations, and similar iniiuences. These disturbances are transmitted through the body of the container causing an oscillation of the syphon tube or tubular member, which, supported only at one end, acts as a cantilever member intermittently loaded at its center of gravity. Frequently, this results in crystallization and subsequent failure of the member adjacent its point of support at the control device.

It is an object of this invention to overcome the foregoing diculties.

Another object is to provide a support for a tubular member or syphon tube of the type referred to.

Another object is to provide a support which acts as a shock absorber and will act as a damper for oscillatory movements of the supported member. Y

Another object is to provide a support which is movable with respect to the surface on which it bears.

A further object is to provide a support which is rugged, simple in construction and easily assembled.

Other and further objects of the invention will be obvious upon an understanding of the illustrative embodiment about to be described, or will be indicated in the appended claim, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.

A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawing, forming a part of the specification, wherein the drawing shows a view in elevation of the shock absorber of the present invention as used in a fluid medium container shown in section.

In the drawing, a uid pressure medium container it is shown provided with a Valve l! which may be of any one of the known standard forms used with this type of container. A tubular member or syphon tube l 2 is secured into the neck portion or the lower portion of the valve li and extends substantially axially through the larger part of the container l@ to a point lll as shown in broken lines. The tubular member at I5 is formed with a collar against which abuts one end of a spring l telescoped about the lower end of the member l2. The other end of the spring i6 bears against the upper end of a sleeve i7 mounted with a sliding iit over the free end of the member I2. The free end of the sleeve il rests at i8 on the inside of the container iii and has fluid flow conducting means in the side thereof such as one or more apertures i9.

It will be apparent that the free end of the tubular member l2 is resiliently supported in contrast to the rigid support of its other end, and the possible cantilever action of the member l2 with the resultant danger of crystallization and failure thereof due to shock or Vibration to which the container il) may be subjected is thus taken up and minimized by the shock absorber arrangement hereinabove described.

The free end of the sleeve H has only a frictional engagement with the inside surface of the container lil, and any oscillatory movement of the tubular member l2, therefore tends to move the sleeve relative to the container. As any deviation of the tubular member and the sleeve from the axial position will tend to shorten their overall length as shown in the drawing, a compressive force will be exerted on the free end of the sleeve, resulting in a compression of the spring and a damping and practical suppression of the oscillatory movement of the member l2.

Axial disturbances, as will be apparent, will be opposed and taken up directly by the spring, so that damaging axial loads on the member l2 will be eliminated.

As various changes may be made in the form, construction and arrangement of the parts herein, without departing fromthe spirit and scope of the invention and without sacriiicing any of its advantages, it is to be understood .that all matter herein is to be interpreted as illustrative and not in any limiting sense.

I claim:

The combination comprising a container for a iiuid medium under pressure, said container having a discharge opening at one end .thereof and a closed end wall at an opposite end thereof, a valve having a body portion in said opening, a relatively long tubular member having one end secured to said body portion of said valve and having a free end spaced a relatively short distance from said end wall, a collar secured to the exterior of said tubular member at a point between said ends of said tubular member but nearer said free end and providing an outwardly gaging said shoulder and having its other end engaging the other end of said second tubular member, whereby the rst mentioned end of said second tubular member is urged against said end Wall to hold said rst tubular member against Vibration.

ARTHUR W. UHL. 

